Natural gas is normally transported over long distances in high pressure transmission pipelines. Where this is not possible for political, technical or economic reasons, the gas has to be transported by ship. To maximize the transport capacity, natural gas is cooled down to approximately -162°C, at which temperature methane, the main constituent, condenses to a liquid (at atmospheric pressure). As a liquid, the occupied volume is reduced 600 times compared to its gaseous volume at normal atmospheric conditions. Some LNG vapourizes during transport, and this is often used as a fuel for the ship: so accurate custody transfer flowmeters are used on all loading and unloading operations.

KROHNE Global Industry Division Oil & Gas

Headquartered in Duisburg, Germany, our Global Industry Division Oil & Gas is dedicated to serving customers in the up-, mid- and downstream oil & gas industry. Our offering extends from elementary process instrumentation up to fully engineered metering systems, and from engineering consultancy during the design phase, through to on-site commissioning and training. With presence in around 100 countries, local support is usually available from just around the corner. This applies whether the application can be covered by standard instrumentation, or is more challenging, where a one-off solution with dedicated process diagnostics is required.

KROHNE Oil & Gas

Germany / Duisburg